Filtration

Filtration is the most common water improvement technology used today. There are two main types of filtration, mechanical and adsorption. Because of the fundamental differences, the two filtration technologies are used to separate different sizes of particles from water.

Mechanical filtration
Mechanical filtration is used to reduce or remove suspended contaminants from a given water stream.  The water stream is passed through a porous filter which stops suspended solids too large to pass through the filter while water and all its contents smaller than the filter’s pores will pass through.  The principle of mechanical filtration is quite simple and effective at stopping suspended material from water streams.  Mechanical filters are rated by the smallest particle size they can effectively stop; the filter rating is normally measured in micrometers or microns.

Filtration by adsorption
Filtration by adsorption also aims to reduce or remove suspended solids from a water stream.  The interesting aspect of this technology is that it is able to filter out particles smaller than the average opening in the filter.  This is possible thanks to Van der Waals law which says that whenever a small mass comes closer to a large mass, it will be attracted to the heavier one by gravitational forces.  Thanks to this natural phenomenon, small suspended impurities can be absorbed by much bigger granules or particles.  This is why filtration by adsorption using very porous activated carbon granules is effective at filtering out a variety of water borne suspended impurities.

The Cleone ® uses both mechanical and adsorption filtration along with reverse osmosis as part of the multi stage process to produce Pure water.